Home / 131,103,890.40-196,774,808.40-66,452,671.20

Finding the Fourth Proportional to 131,103,890.40, 196,774,808.40 and 66,452,671.20

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Solution

The fourth proportional to 131,103,890.40, 196,774,808.40 and 66,452,671.20 is: 99,739,310.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,103,890.40 : 196,774,808.40 = 66,452,671.20 : x
  2. Step 2: Convert to fraction form
    131,103,890.40/196,774,808.40 = 66,452,671.20/x
  3. Step 3: Cross multiply
    131,103,890.40x = 196,774,808.40 × 66,452,671.20
  4. Step 4: Simplify right side
    131,103,890.40x = 13,076,211,643,048,200
  5. Step 5: Solve for x
    x = 13,076,211,643,048,200/131,103,890.40
  6. Step 6: Final answer
    x = 99,739,310.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.